I have the Mercruiser SmartCraft gauges with smart launch and smart tow installed in my 2011 Epic 23v with a 8.1l.

I was running the stock prop 14.25x14 and the launch and speed holding of the smart tow was perfect. It was really stable and wouldn't vary more then a .2-.4 mph. I just changed the prop to lower the RPM with an ACME 13.5x17.5. This engine has enough torque to handle this prop without breaking a sweat. However, the smart tow now has a lot of difficulties hold the speed and it varies a lot.

Do you guys know how it can be calibrated to be more aggressive with the throttle management.